Settings.cs

// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.

// cSpell:ignore appsettings

// <SettingsSnippet>
using Microsoft.Extensions.Configuration;

namespace GraphTutorial;

public class Settings
{
    public string? ClientId { get; set; }

    public string? TenantId { get; set; }

    public string[]? GraphUserScopes { get; set; }

    public static Settings LoadSettings()
    {
        // Load settings
        IConfiguration config = new ConfigurationBuilder()
            /* appsettings.json is required */
            .AddJsonFile("appsettings.json", optional: false)
            /* appsettings.Development.json" is optional, values override appsettings.json */
            .AddJsonFile($"appsettings.Development.json", optional: true)
            /* User secrets are optional, values override both JSON files */
            .AddUserSecrets<Program>()
            .Build();

        return config.GetRequiredSection("Settings").Get<Settings>() ??
            throw new Exception("Could not load app settings. See README for configuration instructions.");
    }
}
// </SettingsSnippet>